Create a Chinese happiness knot with a double loop, styled like the more complex knot in the second reference image (similar to the fourth variant previously). Use icon-color-outlined style with detailed shadows and highlights, thin clean contours, soft rounded shapes, and a pastel palette including #98B5BC, #B5B3C1, #C9A3C9, #E4C0CA, #F7DCD1, #F7C0AA. The design should reflect modern Japanese pop-art and sticker aesthetics, with high detail, vector clarity, soft lighting, and a transparent background.emoji